Security Bulletin: IBM SPSS Modeler CPU utilization (CVE-2014-0963)
IBM SPSS Modeler is affected by a problem related to the SSL implementation which, under very specific conditions, can cause CPU utilization to rapidly increase.
CVE ID: CVE-2014-0963
IBM SPSS Modeler Server is affected by a problem with the handling of certain SSL messages. The TLS implementation can, under very specific conditions, cause CPU utilization to rapidly increase. The situation occurs only in a certain error case that causes a single thread to begin looping. If this happens multiple times, more threads will begin to loop and an increase in CPU utilization will be seen. This increase could ultimately result in CPU exhaustion and unresponsiveness of the IBM SPSS Modeler Server and other software running on the affected system.
This issue can affect the availability of the system, but does not impact system confidentiality or integrity. This vulnerability can be remotely exploited, authentication is not required and the exploit is moderately complex.
To determine if your systems are being affected by this issue, you can monitor the CPU utilization for IBM SPSS Modeler Server instances.
CVSS Base Score: 7.1
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/92844 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:C)
Affected Products and Versions
SPSS Modeler Server 16.0
IBM has provided patches for all affected versions. Follow the installation instructions in the README files included with the patch.
Workarounds and Mitigations
Monitor CPU utilization of your Program Name instances. If utilization becomes abnormally high, stop and restart the affected instance.
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*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
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